Home / 7,666.64-10,569.48-6,339.92

Finding the Fourth Proportional to 7,666.64, 10,569.48 and 6,339.92

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Solution

The fourth proportional to 7,666.64, 10,569.48 and 6,339.92 is: 8,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.64 : 10,569.48 = 6,339.92 : x
  2. Step 2: Convert to fraction form
    7,666.64/10,569.48 = 6,339.92/x
  3. Step 3: Cross multiply
    7,666.64x = 10,569.48 × 6,339.92
  4. Step 4: Simplify right side
    7,666.64x = 67,009,657.64
  5. Step 5: Solve for x
    x = 67,009,657.64/7,666.64
  6. Step 6: Final answer
    x = 8,740.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.